Method of making carry bags



Feb.,19, 1952 E, CANNQ 2,586,514

METHOD OF' MAKING CARRY BAGS Filed Dec. 30, 1948 Tijl..

INVENTOR.

@fune/ng 6am/wd 770P/VEVS Patented Fex19, A1952 METHODOF MAKING CARRYBAGS Leonard E. Canno, New York,rN. Y., assignor to Equitable Paper BagCo., Inc., Long Island City, N. Y., a corporation of New YorkApplication December 30, 1948, Serial No. 68,210

4 Claims.

This invention relates to carry bags. particularly concerned with papercarry bags of the type usually given away by retail merchants to theircustomers and which are therefore preferably produced as inexpensivelyas is consistent with providing a strong bag equipped with adequatecarrying handles.

An object of the invention is to provide a method for making such bagswhich reduces manufacturing costs to a minimum while resulting in theproduction of a satisfactory carry bag. Other objects may be inferredfrom the following disclosure of what is now considered the best form ofthe invention.

The accompanying drawings show in Fig. 1 the progress of a paper -bagweb as it is processed into bag tube lengths in accordance with theinvention and in Fig. 2 a perspective of nished bag resulting afterclosing of the bottom of one of the bag tube lengths.

More specifically the paper bag web I is suiciently heavy p-aper for thepurposes demanded of a carry bag of the conventional size range and itis wide enough to permit it being folded longitudinally along two foldlines so that its opposite edges can overlap sufficiently to provide anadequately strong seam when the overlapped portions are adhesivelysecured together.

The first step is to form transverse lines of weakness in this web I atbag length intervals, transverse lines of perforations 2 being shown.The bag length intervals should be just enough longer than the ultimatebag length-to provide for folding up and adhesively securing a portionof each bag tube length bottom as required to make a bag bottom closurefor each bag.

The next step is to apply spots of active adhesive 3 to the surface `ofthe web I that Will be the bag inside with these spots 3 applied en'Next paper patches 4 are applied to the spots of active adhesive 3.These patches 4 are long enough to span the lines 2 in each instance andto project substantial patch portions across these lines longitudinallyof the web to the opposite sides which are free from the adhesive spotsIt is 3. The patches 4 are shown as being rectangular in shape and theyshould be adequately long and wide to permit secure xing to the web withthe projecting free or unattached portions providing room for theformation of handle openings.u These patches 4 are made of paper ofsubstantially heavier weight than the paper of the web I. The adhesivespots 3 are contoured to cause substantially the entire areas of thepatches 4 to adhere to the web I on the one side of ther lines 2 in eachinstance. If the ordinary wet paste is .used the patches are appliedprior to drying of the paste and while it is therefore still active.

The web I is next tubed to form a bag tube.

This is done by. folding the web longitudinally on one fold line 5 whichis located so that one of the web edge portions is offset from theother, and then folding this offset edge portion along a fold line 6 soit overlaps the opposite edge portion. Conventional tubing methods mayberesorted to including the usual edge pasting and seam pressing toprovide a suitable bag seam on the back wall of the ultimate bag. Thisoperation is not illustrated in detail since bag tubing is well known tothose skilled in the art. A bag tube I results from the foregoing thatlooks like a conventional bag tube With transverse lines of perforationsat the bag length intervals. However, the inside of this bag tube, ofcoursecontains the patches now aligned and superimposed in registrationwith each other and -with the portions beneath the lines of perforationsfirmly secured to the tube insides `but with their portions projectingabove-their lines of perforations free from the tube insides.

Now by tensioning this bag tube at the transverse lines of perforationsbag tube lengths 8 are created, each equipped with a pair of projectingpatch portions flrmlysecured to itsinside. Therefore, after the ordinarystep of closing each bag tube length bottom by folding up a portionthereof and pasting it against the portion of the bag outside itoverlaps, suitable die cutting of the projecting portions of the patches4 to provide for example, displaceable tongues 9. a nished bag isproduced. The tongues 9 may be formed by simultaneously severing thesuperimposed patch portions so that a single die cut does the job. Anytype of handle opening may be formed as exemplified by merely formingtransversely elongated handle holes. Preferably the tongues 9 areformed, by appropriate severance,

4because this permits these tongues to be swung simultaneously in asingle direction so as to 3 interlock the tube handles together, closethe bag tight and provide a rounded surface for grasping by the hand.

Although the method has been described as though carried out by handoperations, the method is adapted for use in connection with machineproduction methods. The spots 3 may be applied; by suitable spottingequipment as the web l lea-ves the usual large supply roll with thelines of perforation formed either shortly before or after thisspotting. Preferably the perfora-r` tions are formed prior tospottinglto avoid the danger of the adhesive contaminating theperioratcr. The patches 4 mayV be. applied autor. matically from twoseparaterollsoi` paper strip of adequate weight. Then when the web goeslover the former and through the ',seamer andlon. to the tube tensioneror snap oi and finally through the bottom closer, the machine.L deliversbags that are completely finished excepting for the diecutting of thehandlesautomatically provided by the practiceof theinventon.` Diecutting equipment may be applied to the end ofY the bag machine sothatzthemachinedelivers completely. finished bags.

In connection with the application of the patches, a machineparticularly adapted for this purpose is disclosed and claimed by-anapplication led by George W. Poppe, bearing Serial No. 747,264, andhaving a ling date of May l0, 1947 (now abandoned). A bag making machineparticularly adapted for tension severing the bag tube into bag tubevlengths is disclosed and claimed by Patent No. 2,466,823, which issuedApril 12, i949, on an application iiled by George W. Poppe, bearingSerialNo. 702,627, and having a filing date of October ll, 1946;

In connection with machine operations, placement of the patches 4rerrn'itelyy from the edges of the web l and fromftlietube-folding lines5 and 6 lavoids interference kb'y-tl'iese patches, with the tubing step.Thus-they are free, from the fold and bag seam forming." element.

The methodY disclosed herein produces paper carry bagsf with what isbelievedV the ultimate in economy. This naturally permits the sellingprice of the carry bags somade to bev lowered to a degree making carry.`bags, available to; the public underv many circumstances where` thepublic has heretoforebeen deniedzthe. convenience of these bags due tothe-.economics involved.

- It is important to note thatthis desirable object is attained by usingpatches thataresimply fiat strips of material and which are, cachan`integral part throughout. used asy attachments for other handle parts;but themselves are` long enough for attachingV to the bag walls and toproject above thebag wall tops to by themselves form. the handleportion. One

The patchesV arel not 4 die cut forms the handle opening. The resultinghandles project upwardly from the bag insides and permit flat stackingof a number of the bags while providing a pair of handles each havingthe same sized ringer opening, as contrasted to one being smaller thanthe other. Hence the described tongue arrangement is possible and thegser is provided greater comfort in carrying the Although the inventionhas been exemplied as applied to a plain bag, it might also be used withother typesgoi` bags. For example, when greater size is desired asatchel bottom could be used. Qtherr` variations; may.v prove desirable.

I'claim:

l; AV methodfformaking carry bags comprising the` steps, offormingftransverse lines of weakness in arweb at bag length intervals,applying patches adhesively to said web with the patches spanning saidlines but adhesively secured only on one sidethereof, tubing said web.and tensioning thev resulting tubeatsaid lines to separate said tubeinto bag lengthswithsaid patches projecting beyond the bag length tubesso they may provide carrying handles.

2. A methodas defined by claim. 1 with said patches applied remotelyfroml theedges of ksaid web and'from the tubefoldingglines toavoid-,interference with theftubing step-,by-said patches.

3. A method as dened by: claim l with said patches applied on the webside forming the tube inside so that saidpatchesextend upwardly from theultimate bag inside.

4; A method of vmaking a paperv carry bag comprising the steps offorming transverse lines of perforations in a paper bag web atbag lengthintervals; applying. spots4 of active.. adhesive to the surface of said.web that rwill be the bag inside with said spots applied .entirely`- onone side of each of said lines and. adjacent thereto and on the sameside ofV all, of said.lines,lapplying patches to said spots ofi activeadhesivewith said patchesl long enoughtospan said lines and projectsubstantial patch portionsthereacross tothe. sides. free fromsaidadhesive; tubing said web, and tensioning the resulting tube at saidlines to separate saidV tube into baglength tubes with saidpatchesprojecting beyond the tops thereof to formrcarry -handle;members.

LEONARD E. CANNO..

REFERENCES CITED The following references are of record in the le of'this. patent:

UNITED STATES" PATENTS Number Name Date.

2,060,450 Steen A V N0v. 10, 1936 s 2,129,842 Holweg sept. 13, 19382,209,901. Poppe July 30, 1940

